Зрительный поиск

Visual search is how quickly you can scan a field for a specific target.

Parallel search (the target "pops out") is near-instant. Serial search (scanning item by item) is slower and scales with density.

This trainer varies density and shape similarity to push you between parallel and serial regimes.

Consistent scan patterns (top-to-bottom, left-to-right) beat random glances.

Each test is constructed using Item Response Theory (IRT) and Classical Test Theory (CTT) to ensure reliable measurement of knowledge and ability across different difficulty levels.

Questions undergo rigorous review including difficulty calibration, discrimination analysis, and distractor effectiveness evaluation to maintain high assessment quality.

1. A grid of shapes appears — one is different.
2. Tap it as quickly as you can.
3. Try to scan in a systematic pattern.
4. Accuracy first; speed follows practice.